JP5755753B2 - 照明ユニット及びそれを用いた画像読取装置 - Google Patents

照明ユニット及びそれを用いた画像読取装置 Download PDF

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Publication number
JP5755753B2
JP5755753B2 JP2013540806A JP2013540806A JP5755753B2 JP 5755753 B2 JP5755753 B2 JP 5755753B2 JP 2013540806 A JP2013540806 A JP 2013540806A JP 2013540806 A JP2013540806 A JP 2013540806A JP 5755753 B2 JP5755753 B2 JP 5755753B2
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JP
Japan
Prior art keywords
light
scanning direction
illumination
parabolic mirror
light source
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
JP2013540806A
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English (en)
Japanese (ja)
Other versions
JPWO2013062009A1 (ja
Inventor
岡本　達樹
達樹 岡本
卓 松澤
卓 松澤
正 美濃部
正 美濃部
隆仁 中西
隆仁 中西
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP2013540806A priority Critical patent/JP5755753B2/ja
Publication of JPWO2013062009A1 publication Critical patent/JPWO2013062009A1/ja
Application granted granted Critical
Publication of JP5755753B2 publication Critical patent/JP5755753B2/ja
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/024—Details of scanning heads ; Means for illuminating the original
    • H04N1/028—Details of scanning heads ; Means for illuminating the original for picture information pick-up
    • H04N1/02815—Means for illuminating the original, not specific to a particular type of pick-up head
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F21K9/64—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using wavelength conversion means distinct or spaced from the light-generating element, e.g. a remote phosphor layer
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • F21V7/06—Optical design with parabolic curvature
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0004—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed
    • G02B19/0019—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed having reflective surfaces only (e.g. louvre systems, systems with multiple planar reflectors)
    • G02B19/0023—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed having reflective surfaces only (e.g. louvre systems, systems with multiple planar reflectors) at least one surface having optical power
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0004—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed
    • G02B19/0028—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed refractive and reflective surfaces, e.g. non-imaging catadioptric systems
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
    • G02B19/0047—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source
    • G02B19/0061—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source the light source comprising a LED
    • G02B19/0066—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source the light source comprising a LED in the form of an LED array
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
    • G02B6/0031—Reflecting element, sheet or layer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/024—Details of scanning heads ; Means for illuminating the original
    • H04N1/028—Details of scanning heads ; Means for illuminating the original for picture information pick-up
    • H04N1/02815—Means for illuminating the original, not specific to a particular type of pick-up head
    • H04N1/02845—Means for illuminating the original, not specific to a particular type of pick-up head using an elongated light source, e.g. tubular lamp, LED array
    • H04N1/0285—Means for illuminating the original, not specific to a particular type of pick-up head using an elongated light source, e.g. tubular lamp, LED array in combination with at least one reflector which is in fixed relation to the light source
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/024—Details of scanning heads ; Means for illuminating the original
    • H04N1/028—Details of scanning heads ; Means for illuminating the original for picture information pick-up
    • H04N1/02815—Means for illuminating the original, not specific to a particular type of pick-up head
    • H04N1/02845—Means for illuminating the original, not specific to a particular type of pick-up head using an elongated light source, e.g. tubular lamp, LED array
    • H04N1/02865—Means for illuminating the original, not specific to a particular type of pick-up head using an elongated light source, e.g. tubular lamp, LED array using an array of light sources or a combination of such arrays, e.g. an LED bar
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/024—Details of scanning heads ; Means for illuminating the original
    • H04N1/028—Details of scanning heads ; Means for illuminating the original for picture information pick-up
    • H04N1/02815—Means for illuminating the original, not specific to a particular type of pick-up head
    • H04N1/02895—Additional elements in the illumination means or cooperating with the illumination means, e.g. filters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/024—Details of scanning heads ; Means for illuminating the original
    • H04N1/028—Details of scanning heads ; Means for illuminating the original for picture information pick-up
    • H04N1/03—Details of scanning heads ; Means for illuminating the original for picture information pick-up with photodetectors arranged in a substantially linear array
    • H04N1/0301—Details of scanning heads ; Means for illuminating the original for picture information pick-up with photodetectors arranged in a substantially linear array using a bent optical path between the scanned line and the photodetector array, e.g. a folded optical path
    • H04N1/0305—Details of scanning heads ; Means for illuminating the original for picture information pick-up with photodetectors arranged in a substantially linear array using a bent optical path between the scanned line and the photodetector array, e.g. a folded optical path with multiple folds of the optical path
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B27/00—Photographic printing apparatus
    • G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
    • G03B27/52—Details
    • G03B27/54—Lamp housings; Illuminating means

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Light Sources And Details Of Projection-Printing Devices (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Facsimile Heads (AREA)
JP2013540806A 2011-10-25 2012-10-24 照明ユニット及びそれを用いた画像読取装置 Active JP5755753B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2013540806A JP5755753B2 (ja) 2011-10-25 2012-10-24 照明ユニット及びそれを用いた画像読取装置

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2011234076 2011-10-25
JP2011234076 2011-10-25
JP2013540806A JP5755753B2 (ja) 2011-10-25 2012-10-24 照明ユニット及びそれを用いた画像読取装置
PCT/JP2012/077484 WO2013062009A1 (ja) 2011-10-25 2012-10-24 照明ユニット及びそれを用いた画像読取装置

Publications (2)

Publication Number Publication Date
JPWO2013062009A1 JPWO2013062009A1 (ja) 2015-04-02
JP5755753B2 true JP5755753B2 (ja) 2015-07-29

Family

ID=48167836

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2013540806A Active JP5755753B2 (ja) 2011-10-25 2012-10-24 照明ユニット及びそれを用いた画像読取装置

Country Status (6)

Country Link
US (1) US9167121B2 (de)
EP (1) EP2773094B1 (de)
JP (1) JP5755753B2 (de)
CN (1) CN103891262A (de)
HK (1) HK1197328A1 (de)
WO (1) WO2013062009A1 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2026556B1 (de) 2007-07-31 2013-05-01 Samsung Electronics Co., Ltd. Multifunktionsgerät mit Scannermodul und Bildscan-Vorrichtung mit dem Scannermodul
US8358447B2 (en) 2007-07-31 2013-01-22 Samsung Electronics Co., Ltd. Scanner module and image scanning apparatus employing the same
US8379275B2 (en) 2007-07-31 2013-02-19 Samsung Electronics Co., Ltd. Scanner module and image scanning apparatus employing the same
JP6560531B2 (ja) * 2015-05-14 2019-08-14 ローム株式会社 イメージセンサモジュール
US10674101B2 (en) 2016-10-28 2020-06-02 General Electric Company Imaging devices for use with additive manufacturing systems and methods of imaging a build layer
JP6583233B2 (ja) * 2016-11-30 2019-10-02 京セラドキュメントソリューションズ株式会社 読取モジュール及びそれを備えた画像読取装置並びに画像形成装置
US10674030B2 (en) 2017-02-22 2020-06-02 Mitsubishi Electric Corporation Illumination device and image reading device
CN107272176B (zh) * 2017-06-29 2019-07-09 大连宏海新能源发展有限公司 一种太阳能碟式聚光镜系统及其设计方法
CN107895133B (zh) * 2017-12-08 2024-03-08 苏州斯普锐智能系统股份有限公司 一种桌上型成像式条码扫描设备
JP7083255B2 (ja) * 2018-02-07 2022-06-10 シャープ株式会社 発光装置、表示装置及び基板
US11831831B2 (en) * 2022-02-25 2023-11-28 Seiko Epson Corporation Image reading apparatus and method of creating correction data

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3444360B2 (ja) 1990-05-09 2003-09-08 三菱電機株式会社 恒温恒室装置
JPH0785238A (ja) 1993-06-25 1995-03-31 Nippon Sheet Glass Co Ltd 画像読み取り装置における原稿照明装置
JP2000224379A (ja) * 1999-02-01 2000-08-11 Pfu Ltd 画像読取り装置
JP3481599B2 (ja) * 2000-07-14 2003-12-22 京都電機器株式会社 線状照明装置
JP2002142082A (ja) * 2000-10-31 2002-05-17 Pfu Ltd 画像読取装置
JP4417700B2 (ja) 2003-09-19 2010-02-17 株式会社リコー 照明装置
JP2005234108A (ja) 2004-02-18 2005-09-02 Canon Inc 原稿照明装置
JP3877731B2 (ja) * 2004-02-23 2007-02-07 シャープ株式会社 密閉型光源装置とこれを用いた映像表示装置
US7281968B2 (en) * 2004-05-18 2007-10-16 Seiko Epson Corporation Method of manufacturing auxiliary mirror, method of manufacturing light source lamp, projector, and method of manufacturing hole opening parts
CN1773325A (zh) * 2004-11-12 2006-05-17 菱光科技股份有限公司 图像扫描组件的集光装置
JP4843344B2 (ja) * 2005-03-18 2011-12-21 株式会社リコー 照明装置及び画像読取装置
US8614413B2 (en) 2007-01-31 2013-12-24 Ricoh Company, Ltd. Image reading apparatus to illuminate light on an original document with an optical member having four planes positioned such that the light incident side is smaller in size than the light exit side
JP5282368B2 (ja) * 2007-01-31 2013-09-04 株式会社リコー 画像読取装置、および画像形成装置
JP5173570B2 (ja) 2008-05-09 2013-04-03 三菱電機株式会社 導光体、照明ユニットおよび画像読取用照明装置
JP2010109652A (ja) 2008-10-30 2010-05-13 Pfu Ltd 照明装置及び画像読取装置
JP5298939B2 (ja) 2009-02-24 2013-09-25 株式会社リコー 原稿照明ユニット、並びにそれを用いた画像読取装置及び画像形成装置
JP2011082969A (ja) 2009-09-10 2011-04-21 Ricoh Co Ltd 照明装置、画像読取装置及び画像形成装置
JP5346854B2 (ja) 2010-03-18 2013-11-20 京セラドキュメントソリューションズ株式会社 画像読取装置，画像形成装置

Also Published As

Publication number Publication date
CN103891262A (zh) 2014-06-25
HK1197328A1 (en) 2015-01-09
EP2773094B1 (de) 2019-10-09
EP2773094A1 (de) 2014-09-03
EP2773094A4 (de) 2015-07-29
JPWO2013062009A1 (ja) 2015-04-02
US9167121B2 (en) 2015-10-20
WO2013062009A1 (ja) 2013-05-02
US20140293372A1 (en) 2014-10-02

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